Heating external application material



FIG. 1 is a front view of the heating external application material showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a back view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a heating external application material, as shown and described. 